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The KA24DE is very similar to the KA24E. The KA24E is SOHC with three valves per cylinder actuated by rocker arms, and the KA24DE is DOHC with 4 valves per cylinder and shim-over-bucket valve actuation. Design improvements of the dual cam engine include the use of a knock sensor, larger diameter girdled main bearings in the Japanese block ...
1988–2004 Nissan KA engine — 2.0/2.4 L — KA20DE, KA24E, KA24DE; 1989–2015 Nissan NA engine — 1.6/2.0 L — NA16, NA20 - replacement of Z series and mostly used in commercial vehicles. Designed based on Z series.
Most of the 240SXs were equipped with the 2.4-liter inline-four engine (KA24E from 1989 to 1990 and KA24DE from 1990 to 1998). The KA24E had a single overhead cam and the KA24DE had dual overhead cams. Two distinct generations of the 240SX, the S13 (1989–1994) the S14 (1994-1998) were produced, based on the Nissan S platform.
Nissan first offered the D22 with a four-cylinder engine, the KA24DE, but added the V6 engine, the VG33E in 1999. In Australia the D22 had the KA24E till 1999, then changed to KA24DE option that year. A 3.0-litre V6 was introduced in June 2000. A supercharged version of the 3.3-litre V6 became available with introduction of the facelifted 2001 ...
The 16-valve 1.8-liter straight-4 produced 139 PS (102 kW; 137 bhp) or 56.7 kW/liter, almost 25% up from the 45.6 kW/liter for the previous 8-valve Golf GTI engine. The GM Quad 4 multi-valve engine family debuted early 1987. The Quad 4 was the first mainstream multi-valve engine to be produced by GM after the Chevrolet Cosworth Vega. The NA ...
The poppet valve's previous problems with sealing and wear had been remedied by the use of better materials and the inertia problems with the use of large valves were reduced by using several smaller valves instead, giving increased flow area and reduced mass, and the exhaust valve hot spot by Sodium-cooled valves. Up to that point, the single ...
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In 1991, however, the engine was upgraded to a 2.0 liter model, offered in two forms: the turbocharged SR20DET variant and the naturally aspirated SR20DE engine, which was introduced in 1996. Although the new engine was of larger displacement, the 180SX nomenclature remained. 180SX was also a trim level of the S110 Silvia in Europe. The badges ...